Abstract
The possibility of sintering zirconium ceramics in the plasma of a glow discharge is investigated. It is shown that sintering in ammonia plasma substantially improves the physicomechanical characteristics of sintered materials as compared to sintering in air plasma and in vacuum heat-treating furnaces. The improvement of the properties is mainly due to the additional stabilization of high-temperature ZrO2 phases by nitrogen and is also explained by specific sintering conditions in the electric field of the glow discharge.
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References
H. Schubert,Diss. dokt. Naturwiss., Fac. Chem. Univ., Stuttgart (1987).
D. P. Uskokovich, G. V. Samsonov, and M. M. Ristich,Activated Sintering [in Russian], Department of Electronics, Scientific Research School and International Institute of Sintering Science, Belgrade (1974).
A. I. Slosman, N. N. Aparov, L. S. Aparova, and S. V. Matrenin, “Effect of preliminary treatment on the technological properties of plasmochemical oxide powders,”Ogneupory, No. 2, 4 – 7 (1994).
V. I. Kovtun, V. I. Trefilov, M. V. Karpets, and S. I. Chugunova, “Formation of new compounds in shock-induced sintering of sphalerite boron nitride with Al2O3 and ZrO2,”Poroshkovaya Metallurgiya, No. 6, 87 – 93 (1993).
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Translated from Ogneupory, No. 9, pp. 20 – 22, September, 1994.